<?php
/*! \page license
 *
 * Copyright (c) 2011, Blaise Lengrand
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this list
 * of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright notice, this
 * list of conditions and the following disclaimer in the documentation and/or
 * other materials provided with the distribution.
 * Neither the name of `snWin' nor the names of its contributors may be used to
 * endorse or promote products derived from this software without specific prior
 * written permission.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

  ob_start("ob_gzhandler");
  $PHP_SELF = $_SERVER['PHP_SELF'];

  // actual script begins here
  $type = false;
  $w = 120;
  $h = 60;
  function open_image($file)
  {
    // Detect type and process accordinally
    global $type;
    global $w;
    global $h;
    $size = getimagesize($file);
    $w = $size[0];
    $h = $size[1];
    switch($size["mime"])
    {
    case "image/jpeg":
      $im = imagecreatefromjpeg($file); //jpeg file
      break;
    case "image/gif":
      $im = imagecreatefromgif($file); //gif file
      break;
    case "image/png":
      $im = imagecreatefrompng($file); //png file
      break;
    default:
      $im = null;
    }
    return $im;
  }

  $url = $_GET['f'];
  $image = open_image($url);

  if (!$image)
    die('Unable to open image');

  $im2 = ImageCreateTrueColor($w, $h);
  imagecopyResampled($im2, $image, 0, 0, 0, 0, $w, $h, $w, $h);

  header('Content-type: image/jpeg');
  $name = explode(".", basename($url));
  header("Content-Disposition: inline; filename=".$name[0]."_t.jpg");
  header("Cache-Control: public");
  header("Pragma: public");
  imagejpeg($im2);
  imagedestroy($im2);
  imagedestroy($image);
?>
